Fix conflicting class names for Highcharts

modules/charts_highcharts/src/Plugin/chart/Highcharts.php

@@ -19,7 +19,7 @@ use Drupal\charts_highcharts\Settings\Highcharts\PlotOptionsSeriesDataLabels;
 use Drupal\charts_highcharts\Settings\Highcharts\Tooltip;
 use Drupal\charts_highcharts\Settings\Highcharts\ChartCredits;
 use Drupal\charts_highcharts\Settings\Highcharts\ChartLegend;
-use Drupal\charts_highcharts\Settings\Highcharts\Highcharts;
+use Drupal\charts_highcharts\Settings\Highcharts\HighchartsOptions;
 
 /**
  * Defines a concrete class for a Highcharts.
@@ -204,7 +204,7 @@ class Highcharts extends AbstractChart {
     // Set exporting options.
     $exporting = new ExportingOptions($options['exporting'] ?: []);
 
-    $highchart = new Highcharts();
+    $highchart = new HighchartsOptions();
     $highchart->setChart($chart);
     $highchart->setTitle($chartTitle);
     $highchart->setAxisX($chartXaxis);

modules/charts_highcharts/src/Settings/Highcharts/Highcharts.php → modules/charts_highcharts/src/Settings/Highcharts/HighchartsOptions.php

@@ -5,7 +5,7 @@ namespace Drupal\charts_highcharts\Settings\Highcharts;
 /**
  * Highcharts.
  */
-class Highcharts implements \JsonSerializable {
+class HighchartsOptions implements \JsonSerializable {
 
   private $chart;
   private $title;